As a model who always hires professional photographers, I would be very disappointed and wouldn't shoot a second time with a photographer where all my images needed a lot of work. It is very rare when I need to crop an image, and usually when I decide to it's so that I can censor it. If most of my images needed real work (instead of superficial blending) I wouldn't consider that person a pro and I would feel ripped off. You asked for the photographers standpoint, but I thought you might also want to hear from a client's perspective.
